Pseudo Parity-Time Symmetry in Optical Systems
Abstract
We introduce a novel concept of the {\em pseudo} parity-time () symmetry in periodically modulated optical systems with balanced gain and loss. We demonstrate that whether the original system is -symmetric or not, we can manipulate the property of the symmetry by applying a periodic modulation in such a way that the effective system derived by the high-frequency Floquet method is symmetric. If the original system is non- symmetric, the symmetry in the effective system will lead to quasi-stationary propagation that can be associated with the \emph{pseudo symmetry}. Our results provide a promising approach for manipulating the symmetry of realistic systems.
Cite
@article{arxiv.1302.1091,
title = {Pseudo Parity-Time Symmetry in Optical Systems},
author = {Xiaobing Luo and Jiahao Huang and Honghua Zhong and Xizhou Qin and Qiongtao Xie and Yuri S. Kivshar and Chaohong Lee},
journal= {arXiv preprint arXiv:1302.1091},
year = {2013}
}
Comments
accepted for publication in Physical Review Letters, including supplementary materials